Mechanical starting device for explosion-engines.



M. P. MITCHELL.

MECHANICAL STARTING DEVICE FOR EXPLOSION ENGINES.

APPLICATION FILED NOV. I9. 1914.

l 3%;]1 2 1, 9 Patented J une 1, 1915.

V 2 SHEETS-SHEE T I Witnesses lnventon Attorneys M. P. mfifiua MECHANICAL-"STARTING DEVICE FQR EXPLOSION ENGINES.

. APPLRDCATION FILED NOV. 19, 19M. LIMA 9%, Patented June 1, 1915.

2 SHEETS SHEET 2.

Witnesses v M 0 Attorr xeys meason MITCEEKJL, EJ251263? 93mg.

TELQCMNKCAL STARTING EJMLLMM.

hpeciflcot-lon cl Letters li o-tent.

saw-ma r'olt massacres-assess s implication filecll lovemher 19, 191i. terial No. 873,025.

To ollwhom it may concern Be it known that l, MARY P. llhrorrsLL, a citizen of the United States, residing at Eaton, in the county of Prehle and State of Ohio, have invented a new and useful Mechanical Starting Device for Explosion-En gines, of which the following is a specification. a

The present invention relates to improvements in mechanical starting devices for explosion engines. I

Ohe object of the invention, is the provie sion of a mechanical starter, which will permit of the starting or initial cranking of the explosion engine, Without the operator or chonfieu'r leaving the seat of the automobile, the parts for operating the same'being in reedy'acoess to the operator or chauffeur.

A further object of the present invention, is the provision of a simple, inexpensive and durable mechanism of this character, which is readily a plied to automobiles new in use, and. which is thoroughly eiiicient and practical in use.

With the foregoing and other objects in view which willappear as the description roceeds, the invention resides in the comliination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made Within the scope of What is claimed Without departing from the spirit of the invention.

In the drawings-Figure 1 is a top plan,

View partially in diagram of the iorward portion of an automobile with the present mechanical starting mechanism in operable relation thereto. Fig 2 is a section taken. on line 2-2 of Fig. l. Fig-3 is a section taken on line 3--3 of Fig, 2. Figs. 4 and 5 are diagrammatic views showing the relative position of the cable carrving drum at the 1nitial starting movement'of the engine crank rotatins drum and at the final movement thereof previous to the slacking of the cable.

Referring to the drawings, Eclesignates the explosion engine of an automobile, sta tionary engine or aeroplane, Whose crank shaft S is provided with the clutch teeth 1,,

for the reception of the sliding clutch momher 2, which in turn is fixed to and 'rotates% with the sleeve 3 of the drum or pulley L1 The drum or pulley at has one end of the fiat;

' P p y spring 5 connected thereto, While the site end of said flat wring is connected; to

the brace or arm 6 Willflh; is supporterlthe frame of the automobile. lit will he 7 seen that as the drum 4: is rotated in ongeeei tion to Wind the spring, that some where released will be rotated by the seeing ried by the drum l adjacent one edge oi as thereof, is a pin or arter- 2, purpose of which will presently The yoke arm ii, is operably cciieecteil'to control the sliding clutch sleeve "F5 seonently move the some into and out oi gagernent with the clutch member 1, soirl aimbein carried by the transversely flirt posed root 9, which provicle willithe operating arm. 10, to which is: lit le connected, the rod ll. which est-critic Warelly and is connected to the arm cal sleeve 13, saidsleeve 'lel hung raoantet rocking movement and being provided with a foot pedal. 14:. By this means, the operateir by depressing the 'foot opera-ms the yolre to piece the sleeve clutch 2 into eiigitgelneilt with the clutch 1, thus connecting the drum to the engine shaft I Mounted to one side and in parallel to the axisof the drum 4, is a short shaft 15, which has fixed thereto, one terminal of a s ring till 17, the opposite terminal of the eerie ojeing'g connected to the small drain 16 leaving one terminalconnected to and portion thereof Wound thereupon, is a cable lit, said cable 18 having several convolutions or coils operable on stationary engiile at the dash board oil the automobile or aero'ol means oi? the handle S20, llt will thus he seen, that the cahle 18 may he pulled upon while the chauffeur or operator is s.

gagement with the small pir- 21 of the drum 16 to impart a rapid rotation to the drain 16 to cause a slash: in the cable 18, so that "when the cable 1 8 is released hr the tiger llil about the drum thcotherencl heir. .ecl

through the pulley sheave 13, one zyi'tllg il ll will;

ator, the spring" 17 will readily draw the ,cable which due to the slackening, is

the operator to depress the foot treadle 1% so as. to place the clutch members 2 and 1 in engagement, and while held in such engagement to pull upon the cable by gripping the handle 20, thus imparting the necessary rotation to the drum 4, and consequently'to the engine shaft, as before stated "the arm 7 being brought into'engagement with the pin 21 so' as to impart rapid rotation to the drum 16 to produce the necessary slack at a time when the drum 4: has been rotated approximately one revolution. This action as before stated, permits the loosening of the cable so that the drum 16 will rapidly return the cable .to initial or starting position. What is clalmed 1s:

1. In an engine starter, a drum for connection with an engine shaft, an operating cable wound around said drum and adapted: to be pulled for rotating said drum, a retracting device for the cable, and means .fior operably connecting the drum and retracting device whereby when the drum has rotated a predetermined amount it will actuate the retracting device to produce a slack in the cable between said device and drum.

2. In an engine starter, a drum for connection with an engine shaft, an operating cable Wound upon said drum and adapted to be pulled for rotating the same, a retracting device for the cable including a drum upon which the cable is normally wound, and means operatively connecting said drums whereby when the first drum has rotated a predetermined amount it will rotate the second drum to produce a slack in the cable be tween the drums.

3. In an engine starter, a drum adapted for connection with an engine shaft, an actuating cable wound upon said drum and adapted to be pulled for rotating the same, a retracting device for the cable including a drum upon which the cable is normally wound, an eccentric pin carried by the second drum, and a tappet carried by the first drum and arranged to engage the eccentric pin and rotate the second drum when the first drum is rotated a predetermined amount, and thereby produce a slack in the cable between the drums.

In testimony that I claim the foregoing as my own, I have hereto allixed inv signature in the presence of two witnesses.

MARY PIERSON MITCHELL.

WVitnesses:

HARRY L, Rrsmenn, F. G. SHUEY. 

